OBJ_add_sigid
return OBJ_add_sigid(sign_nid, digest_nid, pkey_nid);
int OBJ_add_sigid(int signid, int dig_id, int pkey_id);
OBJ_add_sigid(OBJ_txt2nid(sinf->sigalg_name),
|| !TEST_true(OBJ_add_sigid(id, NID_sha3_256, NID_rsa)))